The Graph Tech nut I ordered for my 2010 Gibson LP Studio arrived, and I tried changing it myself by following instruction videos. I asked my father for some help, but even though I explained to him you need to be as gentle and as exact as you can with the guitar, he felt too sure of himself by comparing it to general wood work and I think he hammered the original nut too forcefully. The original nut came out but not as easily as their official instruction video shows. Apparently it was quite glued and some of the wood from under it chipped with the nut. What happened is that the chips that didn't come out with the nut are now higher than the rest of the nut slot. Also, perhaps I didn't see it beforehand but the nut slot looks too un-flat when I look at it from the side (it's probably from the chip that did peel off versus the one that didn't), and there is a tiny crack at the headstock just behind the nut where the leftover chips are. I tried to see if the new Graph Tech at least sits OK before doing any further work (after I had to sand the Graph Tech quite a bit, as it was several millimeters taller than the original unit, and also had some small chip attached to its "inside side" making it too wide), so I placed it without gluing and tightened the strings. It didn't seem to sit too well and kind of tipped due to the nut slot not being flat, and then I noticed the small cracks. So I'm not sure whether testing the nut like this pushed on the headstock damaged the wood. Here are the photos Help! What to do?